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Tibial cutting block

a technology of tibial and tibial bones, which is applied in the field of surgical devices, can solve the problems of comparatively complex, high maintenance costs, and high risk of failure of each setting or adjustment, and achieve the effects of precise tibial cutting, small size and simple structur

Active Publication Date: 2016-02-25
ARTHREX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a tool for precise cuts into the tibia for minimal invasive surgery. The tool has a simple structure, a small size, and requires minimal settings and adjustments. It includes a cutting block with anchoring pins for holding the cutting block in position at the tibia. The cutting block can be pushed to the anterior tibia by the reference pin. The reference pin is aligned between the femoral condyle and the tibia plateau / meniscii with its hook-shaped tip located at the posterior tibia. The angle between the cutting block and the reference pin can be adjusted using an angle adapter and a pin. This allows precise guidance of the cutting block. The invention simplifies the surgical procedure and reduces the risk of complications.

Problems solved by technology

All these instruments or instrument sets have in common that they are comparatively complex.
Generally, each setting or adjustment bears the potential risk of a failure.
Furthermore, complex tools generally are expensive and bear higher maintenance costs compared to simple instruments and tools.

Method used

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  • Tibial cutting block
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Examples

Experimental program
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Embodiment Construction

[0038]In FIG. 1, a preferred embodiment of a tibia cutting block is shown. The tibia cutting block 10 has a tibia attachment side 16 and opposed thereto a front side 17. Furthermore, there is a left side 19 and a right side 18. In this embodiment, the right side is oriented to the cruciate ligament while the left side is oriented medial or lateral. Therefore, this cutting block may be used lateral at the right tibia or medial at the left tibia. A cutting block for use lateral at the left tibia or medial at the right tibia, the sides left and right as related to the cutting block are reversed. On the front side, the cutting block has a first anchoring pin hole 14 and a second anchoring pin hole 15, both define basically anterior-posterior oriented channels through the cutting block and allow the insertion of anchoring pins for holding the cutting block to the tibia. Preferably, the channels through the anchoring pin holes are under an angle between 10 and 30 degrees, most preferably ...

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PUM

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Abstract

A tibia cutting block for performing precise cuts into a tibia comprises an approximately cuboid body with a tibia attachment side and opposing thereto a front side. The body has a cutting guide slot extending from a top side into the body, a blade holding slot extending from a right side or a left side into the body, a first anchoring pin hole which is close to the intersection of a first plane defined by the blade holding slot and a second plane defined by the a cutting guide slot, a second anchoring pin hole distant from the first anchoring pin hole and a reference pin guide. All are penetrating the body from the front side to the tibia attachment side.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to surgical devices, and more particularly to orthopedic devices for performing knee arthroplasty.[0003]2. Description of the Related Art[0004]Specific tools and instruments are required for knee arthroplasty, and specifically for the treatment of localized unicondylar cartilage degeneration as a result of osteoarthritis or post-traumatic arthrosis in the medial or lateral compartment of the knee. A critical step in this kind of surgery is the preparation of bones to adapt for tibial resurfacing implants. As the precise location of these implants is essential for a good mechanical function and a long lifetime of the implant, the cuts into the bone material must be performed with high precision.[0005]A device for preparing a proximal tibia for a tibial implant is disclosed in US 2013 / 0116698 A1. The device provides a main body and a reference bench coupled thereto. Other devices or instruments may b...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/17
CPCA61B17/1764A61B17/157A61B17/8886A61B17/864A61B17/92
Inventor SEITLINGER, GERDDIRISAMER, FLORIANMOLL, UTANAUDIN, STEPHANEUHING, FRANKGERLINDE, MICHEL
Owner ARTHREX
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